11221121202 has 16 divisors (see below), whose sum is σ = 23048789952. Its totient is φ = 3639282480.

The previous prime is 11221121183. The next prime is 11221121209. The reversal of 11221121202 is 20212112211.

11221121202 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11221121202² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11221121209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25272574 + ... + 25273017.

It is an arithmetic number, because the mean of its divisors is an integer number (1440549372).

Almost surely, 2^11221121202 is an apocalyptic number.

11221121202 is an abundant number, since it is smaller than the sum of its proper divisors (11827668750).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11221121202 is a wasteful number, since it uses less digits than its factorization.

11221121202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50545633.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11221121202 its reverse (20212112211), we get a palindrome (31433233413).

The spelling of 11221121202 in words is "eleven billion, two hundred twenty-one million, one hundred twenty-one thousand, two hundred two".